Air pump



A. MARSCHALEK.

AIR PUMP.

APPLICATION'HLED SEPT. 25, 1920.

1,438,773. Patented Dec. 12, 1922.

W T/VESSE Q I J2 m m/ flzmwm/Yawawmzc BY 22 2d I ATTORNEYS I l atented l2,- i922,

ALEXANDER nansorrnrinn, or nnsrnurnnaroan, new JERSEY.

Aria sens.

Application filed September 25, 1920. Serial No. erases.

To all 107mm e't'mag concern:

Be it known that I, ALEXANDER MAR- soHALnK, a subject of the King'of Ital ,an'd

a resident of East Rutherford in the county of Bergen and State of New Jersey haveinventeda new and Improved A1r lump; of

which the following isa full clear, and exact description. a i

'The object of the invention is to provide 10 a new and improved air pump more especially designed for the use of autoists and other persons and arranged to enable the user to conveniently actuate the pump to quickly inflate the tires to a desired pressure without requiring undue physical exertion.

Another object is to permit of temporarily attaching the air pump to the running board or other member ofthe automobile thus enabling the user to conveniently actuate the air pump. l

lVith these and other objects in view, the

invention consists of certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims. i

A practical embodiment of the invention the same Figure l is an enlarged sectional plan view of one of the barrels and its mounting.

The improved air pump in its general construction is provided withtwo barrels or cylinders '10 and 111., of which; the barrel 1O is provided with inner and outer heads 12. and 13 and SlTTHlf M. heads l4: and 15 31783-1? 45 ranged on thclmrrel 1'11, in the barrels are iounted to 1 ciprocate plungers 20 and 21.,'

provided with plungcrrods 22., 23 extending; through the inner headslQ and 14- of the barrels 10 and '11. The outer ends of 50 the plunger rodsEZZand' 23 are connected by a pivot 24 with a handle 25, under the horn trol of the user of the air pump lJOTGClPI'01 cute the plungers 20 and 21 inzthebarrels l0 and 11, and imparting a swinging motion 55 to the barrels 10 and 11 in the same plane, as hereinafter more fully explained.

cuter ends of the ha through the valved outlets eZOand ll ID'iZO' "lhe outerheads and 15 of the barrels" 10 and '11 are mounted to swing on the transverse ends and 31 of a frame 82, and the said ends 30' and81 are provided wlth clamps 33 and 34: adaptedto engage a run "ning" board 35 or other support for tempo rarily supportingthe air pump while using the same. It will be noticed that by the arrangement described, the barrels 10 and 11 are-"mounted to swing upand down on the endsBO and 31 of the supporting frame 32, the barrels swinging in the same plane. It will be noticed that when the barrels 10 and ll have their axescoinciding then the plungers 20 and 21 are in their outermost handle 25 upward then a desiredswinging movement is given to the barrels 10 and 11, and the plungers 20 and2l move inward towards each other in the barrels 10 and 11.

positions, and when the operator pulls the r W'hen thefhandle 25 is pushed downwar then the barrels 10 and 11 are swung downward and the plungers 20 and 21 move out} ward in the said barrels 110 andvll. A like movement is imparted to the barrels 10 and lland their plungers 20 and 21 on pushing the handle -25 downward and returning it after the barrels 1'0 and ii have reachedan "alined position with their axes'coincidinm lhe'outer heads 13 and 1.5 of the barrels 10 and 1.1 are provided with valved outlets 410 and l1 connected by tubes 42, d3 with a T-shaped fixture 44; from' which extends a tube 45 provided with a gage 4:6 and a cou pling f? for connecting the =tubeJni with the valve of the tire to be inflated.

The operation is as followsi When the pump is attached to the running board 35 of an automobile and the cou' pli 4'? connected with the valve of a tire to be inflated then the operator alternately moves the handle 25 up and down to impart correspondin swinging movements to the barrels 10 and ii and to cause the plunyrersQO and 21 to reciprocate in the bar rels 10 and "l l. During the outer movement of the plungers 20 and 23. the an? in the ls l0 and 11 is pushed and itliroughthe tubes 42 5A- and 45 to pass intothe t reto' be inflated to a desired pressure. indicated by the gage 46. The

plungers 20 and 21 are cushioned; on moving ito innermost positions, by suitable springs or other cushioning devices, thus preventing the user from moving the handle 25 too 'far up or too far down. 'that the plrmgers 20 and 21 are of usualv It understood construction, and the inner heads 12 and 14: are provided with suitable air inlets to allow airtopass into the inner ends of the barrels l0 and 11 to prevent the formation of a vacuum therein. I y I From the foregoingit will'beseen that a double barrel pump is provided having but a single handle for actuating'the pumps to force a large amountof air into the-tirein a comparatively short time and without requiring undue physical exertion onthe part of the operator. The air pump shown and described takes up "comparatively little room and, can. be readily carried along in an automobile and quickly and conveniently attached to the running board whenever it is desired to inflate any one of the tires on the corresponding sideof the vehicle.

g The air pump shown and described is very simple and durable in construction and 'is not liabletto geteasily out, o'forder.

Having thus described my invention, I claim as new anddesire to secure by Letters Patent:

1'; An air pump, comprising apair of barrels pivoted at their outer ends to swing up and down-in the same plane, plungers vreciproc ating, in the barrels .and having plunger rods extending through; the inner ends of the barrels, valved outlets at the fpivotal ends of the barrels, amanually operated handle pivotally connected with and supported bythe projecting ends of the plungerrods for simultaneously swinging the barrels up and down and reciprocating the ,plunglers in the same direction, and a cushioning means tor limiting the up and down movement oi the handle.

iin air pump comprising a frame. provided with means for attaching it to a sup- ;port,a pair of barrels having closed ends, the outer ends of the barrels being mounted on the frame to swing up and down, spring pressed plunger-sin the barrels and having rels and reciprocating the plungers in the same direction,

air pump, comprising afl ranlc hav ing inwardly extending members provided with clamps for attaching the tra ns to a support, -barrels provided with inner and outerheads at'the inner and outerends of the-barrels, the outer heads beingpivoted on the .end members of the said frame, valved outlets mounted on the said outer 'rels having headsclosing the same, the

outer heads having horizontal openings through which the angular ends of the rod pass and upon which. ends the barrelsswing, valved outlets at the pivotal ends of the barrels, plungers in the barrels and having plunger rods extending through the inner heads of the barrels, and a manually operated handle pivotally connected with the projecting ends of the plunger rods. 7

5. In a device of the, character described, a plurality of pumps supportedior swinging movement and each having a cylinder and a piston, and means for simultaneously swinging said pumps about their pivots and moving said pistons on their compresslon strokes.

6. In a device of the character described,

plurality of pumps supported forswing mg movementva'nd each having. a cylinder and a reciprocat ng piston, and means for simultaneously swinging said pumps in opposite directions about their pivotsand reciprocating said pistons within said cylin ders.

r 7. In a device of the character described, a plurality of opposed pumps supported for swinging movement and each having a cylinder and reciprocating piston,,and operat ng means connected to sa d p stons and adapted to simultaneously swlng said pumps (towards each otherabout their pivots and reciprocate said pistons .withinsaid cylinders.

8. In a device of the character described,

.a frame, a plurality of pumps each having a cylinderpivoted in said frame and a piston, anda common operating rodconnected .to said pistons and adapted to simultane ously move said pistons on corresponding strokes.

9.111 a device of the character described, plural ty of pumps each supported for swing ng movement and each having a cylinder and reciprocating piston. and. means for simultaneously swinging said pumps in opposite..directi ons about their pivots while ma nta n ng said pistons lIl'lUllSOIlOIl their compression strokes and on their other strokes.

ALEXANDER-MARSCHALEK- 

